I've terminated a
Plesk Client subscription in PBA-S, but the domain/client is still listed in Plesk Manager. As a result, I cannot register the domain/client in PBA-S through Conflict Resolver for migration purposes. The following error may occur:
You are able to create Plesk domain subscription only for this account
The issue might be caused by this bug:
PBAS-28349 - Plesk domain is still linked to a deleted subscription
The issue is fixed in PBA-S as of version 4.5. Please consider upgrading PBA-S to 4.5 once it is released.
Contact Parallels Support to delete the client from the PBA-S database.